GB884302A - Improvements in or relating to electronic selecting devices - Google Patents

Improvements in or relating to electronic selecting devices

Info

Publication number
GB884302A
GB884302A GB10673/58A GB1067358A GB884302A GB 884302 A GB884302 A GB 884302A GB 10673/58 A GB10673/58 A GB 10673/58A GB 1067358 A GB1067358 A GB 1067358A GB 884302 A GB884302 A GB 884302A
Authority
GB
United Kingdom
Prior art keywords
column
voltage
transistors
hand
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB10673/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Industrielle des Telephones SA
Original Assignee
Compagnie Industrielle des Telephones SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Industrielle des Telephones SA filed Critical Compagnie Industrielle des Telephones SA
Publication of GB884302A publication Critical patent/GB884302A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/52—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of gas-filled tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
    • H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Rectifiers (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

884,302. Automatic exchange systems. COMPAGNIE INDUSTRIELLE DES TELEPHONES. April 2, 1958 [April 4, 1957], No. 10673/58. Class 40 (4). In a matrix of thyratrons in which the firing of one thyratron locks out the remainder of the thyratrons in the same column by virtue of a common anode load for each column, the lockout is further reinforced by additional lock-out conditions applied to the grids of the column. As shown, selection of a thyratron is effected by changing over one of contacts Hi . . . Hp (say Hi) and causing one of transistors Vi . . . Vj . . . (say Vj) to conduct. The latter applies anode potential to the jth column via a load resistance Rj and the former applies striking voltage Vs to the grids of the ith row via the left-hand ones of pairs of resistors d. Transistors Tj is conducting at this time and applies striking voltage Vs to the right-hand resistance d of the jth column so that the grid receives voltage Vs and the tube fires. After a short delay imposed by the condenser C, voltage Va applied by the collector of Vj to the base of Tj cuts the latter off so that now a smaller voltage Vh is applied to the right-hand resistor of the pairs d in the column. As a result when an attempt is made to strike another tube in the column, by applying voltage Vs to its left-hand resistor d, the voltage applied to the grid is only ¢ (Vs + Vh) which is insufficient to fire the tube. The switches Hi . . . Hp may be replaced by transistors. Alternatively, the transistors Vi . . . Vj, Ti . . . Tj may be replaced by switches. The tubes when fired control the connection of corresponding horizontal and vertical A.C. path as described in Specification 830,093.
GB10673/58A 1957-04-04 1958-04-02 Improvements in or relating to electronic selecting devices Expired GB884302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1092964X 1957-04-04

Publications (1)

Publication Number Publication Date
GB884302A true GB884302A (en) 1961-12-13

Family

ID=9616295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10673/58A Expired GB884302A (en) 1957-04-04 1958-04-02 Improvements in or relating to electronic selecting devices

Country Status (5)

Country Link
US (1) US3048821A (en)
CH (1) CH352372A (en)
DE (1) DE1092964B (en)
FR (1) FR1172446A (en)
GB (1) GB884302A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388750A (en) * 1963-11-13 1965-02-12 Control device for electronic tecnetron telephone switching networks
US3397388A (en) * 1963-12-20 1968-08-13 Ibm Matrix control circuit
US3387287A (en) * 1965-02-17 1968-06-04 Colorado Instr Inc Digital data storage circuit for data recording and transmission systems
GB1153995A (en) * 1965-08-06 1969-06-04 Solartron Electronic Group Improvements in or relating to Data-Display Apparatus
US3597737A (en) * 1968-06-21 1971-08-03 Susquehanna Corp Interlocking switch arrangement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056301A (en) * 1927-05-05 1936-10-06 Telefunken Gmbh Method of and apparatus for picture transmission
US2049763A (en) * 1931-08-10 1936-08-04 American Television Lab Inc Television sign
US2136441A (en) * 1934-04-21 1938-11-15 Rca Corp Television system
GB566445A (en) * 1943-08-13 1944-12-29 Siemens Brothers & Co Ltd Improvements relating to searching arrangements in telephone systems
US2428811A (en) * 1943-10-30 1947-10-14 Rca Corp Electronic computing device
US2691151A (en) * 1950-05-22 1954-10-05 Products & Licensing Corp Multiple switching systems
US2693593A (en) * 1950-08-19 1954-11-02 Remington Rand Inc Decoding circuit
FR1014597A (en) * 1950-11-16 1952-08-19 Int Standard Electric Corp Electric discharge device
US2769865A (en) * 1951-02-20 1956-11-06 Automatic Elect Lab Electronic telephone systems
US2825889A (en) * 1955-01-03 1958-03-04 Ibm Switching network
US2889537A (en) * 1955-10-28 1959-06-02 Gen Dynamics Corp Electronic selector switch
US2886797A (en) * 1955-10-31 1959-05-12 Teletype Corp Fixed message signal generator
US2774813A (en) * 1955-11-01 1956-12-18 Sylvania Electric Prod Electroluminescent television panel
GB811242A (en) * 1956-11-09 1959-04-02 Powers Samas Account Mach Ltd Improvements in or relating to electric storage and data routing apparatus

Also Published As

Publication number Publication date
US3048821A (en) 1962-08-07
FR1172446A (en) 1959-02-10
CH352372A (en) 1961-02-28
DE1092964B (en) 1960-11-17

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